they will fatten up throughout the flowering phase man, but after the stretch there is not too much need for Nitrogen, so feed it Phosphorous and Potassium (aka P and K) in fair amounts and just remember to flush if you arent organic.
BTW man, what do you use? chem ferts or are you organic? what do you grow in?
You do great work for just kinda getting in the loop! did you ever upgrade to the 600?
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all my grows are for fun.
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